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Background Multiple techniques and pharmacological efforts have been tried to control intraoperative hemodynamic fluctuations, reduce perioperative blood loss and severe postoperative pain. This study aimed to assess the perioperative effects of oral premedication with pregabalin or clonidine for lumbar spine posterior fusion under general anesthesia (GA). Outcome measures: Perioperative blood loss, hemodynamics, anesthetics consumption, postoperative pain, and side effects
Aiad et al. (Thu,) studied this question.